Ducting arrangement for cooling a gas turbine structure

Lee, Ching-Pang; Morrison, Jay A.

Title: Ducting arrangement for cooling a gas turbine structure

Patent · Tue Jul 21 00:00:00 EDT 2015

OSTI ID:1195939

Lee, Ching-Pang; Morrison, Jay A.

A ducting arrangement (10) for a can annular gas turbine engine, including: a duct (12, 14) disposed between a combustor (16) and a first row of turbine blades and defining a hot gas path (30) therein, the duct (12, 14) having raised geometric features (54) incorporated into an outer surface (80); and a flow sleeve (72) defining a cooling flow path (84) between an inner surface (78) of the flow sleeve (72) and the duct outer surface (80). After a cooling fluid (86) traverses a relatively upstream raised geometric feature (90), the inner surface (78) of the flow sleeve (72) is effective to direct the cooling fluid (86) toward a landing (94) separating the relatively upstream raised geometric feature (90) from a relatively downstream raised geometric feature (94).

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Research Organization:: Siemens Energy, Inc., Orlando, FL (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-05NT42644

Assignee:: Siemens Energy, Inc. (Orlando, FL)

Patent Number(s):: 9,085,981

Application Number:: 13/655,675

OSTI ID:: 1195939

Resource Relation:: Patent File Date: 2012 Oct 19

Country of Publication:: United States

Language:: English

References (27)

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Cited By (1)

Ducting arrangement for cooling a gas turbine structure Lee, Ching-Pang; Morrison, Jay A. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9085981 US Patent Document 9,085,981	patent	July 2015

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